var a = true;
var b = false;

println("a = {a}");
println("b = {b}");

println("not a = {not a}");
println("not b = {not b}");

println("a and a = {a and a}");
println("a and b = {a and b}");
println("b and a = {b and a}");
println("b and b = {b and b}");

println("a or a = {a or a}");
println("a or b = {a or b}");
println("b or a = {b or a}");
println("b or b = {b or b}");
